No, crying doesn’t release toxins, though it might make you feel better… if that’s what you believe

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Leah Sharman does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

This is particularly exaggerated in many Western countries, where women report crying more often than those from non-Western countries. And in non-Western countries the difference in crying frequency between men and women is smaller. In some instances, it’s non-existent.

We cry less often as we grow up.from shutterstock.com

Scientists have long speculated why we cry and what happens in our bodies when we’re doing it. Some have suggested crying may be expelling chemicals that are built up during feelings of distress, or that crying causes a chemical change in the body that reduces stress or increases positive feelings. But we don’t actually know that much about crying and most of the studies out there are based on self-reporting.

Here’s what we do know.

Whether crying is good for you is subjective

The most pervasive idea about crying is that we do it because it’s helpful in some way; perhaps it provides relief or catharsis. But the research on this is mixed, with crying sometimes showing an improvement in mood and sometimes a worsening.

On the other hand, people appear to cry to make themselves feel better, which is likely why we have an entire film genre (tearjerkers) dedicated to making us cry. Some have suggested crying is a self-soothing behaviour, so we cry because crying on its own is soothing.

These authors also suggest crying could be a form of self-signalling, which means it’s like an alarm that lets us know something is wrong, forcing us to engage in other behaviours that help reduce feelings of distress, perhaps through distraction or meditation. We might otherwise seek out others to help us feel better in an act of social soothing.

Despite the overwhelming perception crying is useful at a personal level, most research suggests crying is more of a social phenomenon. Crying is an extremely effective signal to others that something is wrong and that you may be in need of help and comfort. Experiments and surveys show viewing images of crying faces compared to faces without tears not only make the face appear sadder, but also elicit greater sadness in the observer, more emotional support, less avoidance, and more overall helping behaviours.

But before you go crying in front of others for support, just remember other studies show doing so may actually lead to feelings of shame and embarrassment.

What happens in our body when we cry?

Crying seems, at best, to do not much at all, and, at worst, to increase our physiological arousal. In our laboratory research we attempted to test whether crying reduces or interferes with the levels of the stress hormone (cortisol), and whether it may be able provide some other physical benefit, such as numbing, which could explain why we cry when we are in either emotional and physical pain.

We found crying had no effect on stress levels and people weren’t able to withstand pain more readily than those who did not cry. But those who cried were more in control of their breathing rate. This suggests people may hold their breath during crying in a bid to calm themselves down, and perhaps use the crying behaviour to initiate the calming strategy.

Perhaps the reason men cry less as they reach adolescence is because of the cultural expectations of masculinity. Men are “tough” and considered as having emotional reserve while being emotionally expressive is considered feminine. This may be why ratings of shame in crying are much higher among men compared to women.

There is no right amount of crying

Crying is a personal process. Whether you cry, and how often, may be related to your culture, gender, and emotional expressiveness. Unless you are physically unable to cry, there is no such thing in the literature as crying either too much or not enough.

It is important to remember that crying is part of expressing an emotion, not necessarily part of experiencing an emotion.

Whether crying actually helps is also part of our personal judgement. Some say crying makes them feel worse than if they didn’t cry. Others may cry because they believe it is helpful and cathartic. However, if you feel you are crying more than you normally do, it might be useful to consider why this may be the case and if you need external support.